CN201222470Y - Current overload protector capable of manual reset - Google Patents
Current overload protector capable of manual reset Download PDFInfo
- Publication number
- CN201222470Y CN201222470Y CNU2008201210007U CN200820121000U CN201222470Y CN 201222470 Y CN201222470 Y CN 201222470Y CN U2008201210007 U CNU2008201210007 U CN U2008201210007U CN 200820121000 U CN200820121000 U CN 200820121000U CN 201222470 Y CN201222470 Y CN 201222470Y
- Authority
- CN
- China
- Prior art keywords
- springboard
- contact
- overcurrent protection
- resetting
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Thermally Actuated Switches (AREA)
Abstract
The utility model relates to a current overload protector which can be reset manually and comprises a shell, wherein the shell is composed of a base and a cover board which are buckled, a static terminal and a movable terminal are extended into the shell, a static contact is arranged in the inner end of the static terminal, the inner end of the movable terminal is connected with a bimetallic strip, the bimetallic strip is provided with a movable contact which is matched with the static contact, a locating pin is arranged on the base, the locating pin is matched with a resetting spring-board in a rotating mode, one end of the resetting spring-board is in an arc shape, a spring-board offsetting spring is inserted between the end and the shell, the end of the resetting spring-board is matched with a resetting push button, the resetting push button can move along a supporting structure which is arranged in the shell, the offsetting spring is inserted between the resetting push button and the supporting structure, after the movable contact and the static contact are disconnected, the resetting push button is pressed, the resetting push button presses an arc end of the resetting spring-board, the resetting spring-board rotates with the locating pin as an axis, the other end of the resetting spring-board presses the bimetallic strip, and the movable contact is contacted with the static contact. The current overload protector of the utility model has the advantages of simple structure and stable technical performance.
Description
Technical field
The utility model belongs to technical field of electric appliances, but a kind of overcurrent protection device of hand-reset particularly.
Background technology
Security incident unavoidably can take place in household electrical appliance, and therefore, for strengthening the fail safe that electrical equipment uses, a kind of overcurrent protection device just arises at the historic moment.Present overcurrent protection device, its principle are to utilize the material behavior of bimetal leaf to make connecting and disconnecting of the circuit.When current overload, bimetal leaf is subjected to thermal deformation, and circuit is disconnected; After circuit recovers normally, push reset button circuit is connected.But, existing overcurrent protection device complex structure, and the technical performance instability of overcurrent protection.
Summary of the invention
But the utility model discloses a kind of overcurrent protection device of hand-reset, it has advantage simple in structure, that technical performance is stable.
The utility model is taked following technical scheme: but the overcurrent protection device of hand-reset, comprise housing, housing is fastened by base and cover plate and forms, stretch into static terminal and moved end in the housing, fixed contact is established in static terminal the inner, and moved end is inner to link to each other with bimetal leaf, and bimetal leaf is provided with the moving contact that matches with described fixed contact, establish alignment pin on the base, the alignment pin springboard that resets that is rotatably assorted; The end of springboard of resetting is curved, inserts the springboard back-moving spring between this end and housing, and this end of the springboard that resets matches with reset button, and reset button can move along the fixed mount of being located in the housing, inserts back-moving spring between reset button and fixed mount; Moving contact and fixed contact are pushed reset button after disconnecting, the arc tips of reset button pressed home springboard, and this springboard that resets just is that axle rotates with the alignment pin, the other end roof pressure bimetal leaf of the springboard that resets makes moving contact contact with fixed contact.
Described overcurrent protection device, fixed contact is riveted on the static terminal.
Described overcurrent protection device, moved end links to each other by rivet with bimetal leaf.
Described overcurrent protection device, moving contact is riveted on the bimetal leaf.
Described overcurrent protection device is provided with two back-moving springs between reset button and fixed mount.
But the overcurrent protection device of the utility model hand-reset is in conjunction with bimetallic material characteristic and mechanical structure; it is reasonable in design, the protection of compact conformation, small-power electric current is stable; solved the weak point of existing overcurrent protection device, it is widely used in the occasion that various needs carry out overcurrent protection.
This overcurrent protection device separates with resetting the action of bimetal leaf, so just makes the consistent performance of little overcurrent protection, has increased the sensitivity of overcurrent protection simultaneously and has prolonged useful life.
When circuit working state, if the excessive phenomenon of electric current takes place, when causing the temperature rising of overcurrent protection device two-terminal, make bimetal leaf deformation take-off, the contact of static terminal and moved end disconnects, thereby cuts off circuit, reaches the purpose of overcurrent protection.Push reset button, moved end on the bimetal leaf is contacted with static terminal, thereby connect circuit.
Description of drawings
Fig. 1 is a three-dimensional exploded view of the present utility model.
Structural representation when Fig. 2 is contact of the present utility model disconnection.
Structural representation when Fig. 3 is hand-reset of the present utility model.
Fig. 4 is plan structure figure of the present utility model.
Fig. 5 is a three-dimensional structure diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is specified.
Shown in Fig. 1-5; but the overcurrent protection device of hand-reset comprises housing; housing is fastened with cover plate 8 by base 1 and forms; stretch into static terminal 2 and moved end 7 in the housing; static terminal 2 inner riveted joint fixed contacts 3; moved end 7 is inner by rivet 6 riveted joint bimetal leafs 5, the moving contact 4 that bimetal leaf 5 riveted joints contact or disconnect with fixed contact 3.Establish alignment pin 13 on the base 1, alignment pin 13 springboard 10 that resets that is rotatably assorted; The end of springboard 10 of resetting is curved, inserts springboard back-moving spring 9 between this end and housing, and this end of the springboard 10 that resets is subjected to the extruding of reset button 12 or loosens.Fixed mount 15 is set in the housing, and reset button 12 can be along fixed mount 15 upper and lower translation but can't be separated from fixed mount and outwards deviate from, and 15 of reset button 12 and fixed mounts are inserted back-moving spring 11,14.Moving contact 4 is pushed reset button 12, the arc tips of reset button 12 pressed home springboards 10 after disconnecting with fixed contact 3, this springboard 10 that resets is that the axle core rotates with alignment pin 13 just, the reset other end roof pressure bimetal leaf 5 of springboard 10 makes moving contact 4 contact with fixed contact 3, connects circuit.
As shown in Figure 2, when current overload, moving contact 4 disconnects with fixed contact 3.After circuit recovers normally, manually press the knob 12 that resets, the arc tips outer wall of knob 12 pressed home springboard 10 when moving downward resets, impelling the springboard 10 that resets serves as that axle rotates with alignment pin 13, after the springboard 10 that resets turns over certain angle, its other end roof pressure bimetal leaf 5 contacts the moving contact 4 on the bimetal leaf 5 again, as shown in Figure 3 state with fixed contact 3.Then, under the effect of returning spring 11,14, the knob 12 that resets resets at the original place, and loosens springboard 10 extruding that reset, and the springboard 10 that resets resets to the original place under the effect of springboard returning spring 9, thereby finishes a do action.
In sum, but the current over-load protector of the utility model hand-reset have compact conformation, simply with And advantage easy to operate, long service life, it has improved reliability, the security of overcurrent protection, tool Very strong practicality is arranged, be a kind ofly be skillfully constructed, unique novel structure design.
Claims (5)
- But the overcurrent protection device of 1 hand-reset, comprise housing, housing is fastened by base and cover plate and forms, stretch into static terminal and moved end in the housing, fixed contact is established in static terminal the inner, and moved end is inner to link to each other with bimetal leaf, bimetal leaf is provided with the moving contact that matches with described fixed contact, it is characterized in that, establish alignment pin on the base, the alignment pin springboard that resets that is rotatably assorted; The end of springboard of resetting is curved, inserts the springboard back-moving spring between this end and housing, and this end of the springboard that resets matches with reset button, and reset button can move along the fixed mount of being located in the housing, inserts back-moving spring between reset button and fixed mount; Moving contact and fixed contact are pushed reset button after disconnecting, the arc tips of reset button pressed home springboard, and this springboard that resets just is that axle rotates with the alignment pin, the other end roof pressure bimetal leaf of the springboard that resets makes moving contact contact with fixed contact.
- 2, overcurrent protection device as claimed in claim 1 is characterized in that, described fixed contact is riveted on the static terminal.
- 3, overcurrent protection device as claimed in claim 1 is characterized in that, described moved end links to each other by rivet with bimetal leaf.
- 4, overcurrent protection device as claimed in claim 3 is characterized in that, described moving contact is riveted on the bimetal leaf.
- 5, overcurrent protection device as claimed in claim 1 is characterized in that, two back-moving springs are set between described reset button and fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201210007U CN201222470Y (en) | 2008-07-07 | 2008-07-07 | Current overload protector capable of manual reset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201210007U CN201222470Y (en) | 2008-07-07 | 2008-07-07 | Current overload protector capable of manual reset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201222470Y true CN201222470Y (en) | 2009-04-15 |
Family
ID=40575973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201210007U Expired - Fee Related CN201222470Y (en) | 2008-07-07 | 2008-07-07 | Current overload protector capable of manual reset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201222470Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288571A (en) * | 2018-03-22 | 2018-07-17 | 杭州可速自动化设备有限公司 | Overload protective device |
-
2008
- 2008-07-07 CN CNU2008201210007U patent/CN201222470Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288571A (en) * | 2018-03-22 | 2018-07-17 | 杭州可速自动化设备有限公司 | Overload protective device |
| CN108288571B (en) * | 2018-03-22 | 2024-03-12 | 杭州可速自动化设备有限公司 | Overload protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20130707 |